Giggity231

You can only fit 33's with a level. That's what I run on mine. Gave me plenty of clearance for the 4x4'ing I do...but that's mainly camp trails that occasionally get rough

Awesome thanks again for this. Those mpg's are painful...especially now. I have a Jeep that gets around the same but is driven like the slow tank that it is. Needless to say it stays parked until my son gets his learners permit.

Not sure if you're aware of this, but Precision Transmission has a youtube channel. I've watched a few of his rebuild videos. Definitely seems like he's mastered his craft. Bet it serves you well.

It's nice to see the info like this. If tire/wheel weight wasn't a concern I'd definitely go 3.73. That would bring me just 67 RPM above stock configuration at 70mph. But given the heavier tires 4.10s would probably be best. I knew my stock 20 mph highway driving was dead and gone once I leveled and put the bigger tires on it. Since NHT trucks come with 3.73s, can you show me this table with stock tires running 3.73s? Wondering how close RPM would be on that vs. the 33's/4.10 on your bottom chart you provided.

Glad to hear that. Most my long range highway driving is pulling, so 300-400 rpm higher would be acceptable.

This looks like a pretty awesome tool! As a fellow Excel geek I appreciate how clean and detailed this is. Exact tire size is 275/70R18. I'm not sure what a flotation tire is. They're BFG AT KO2's if that answers your question. Don't know tread depth measurements but they're almost new. Have maybe 1000 miles on them.

Hey all. I'm trying to use the gear ratio calculator in the link below. I have a '17 1500, 6l80, 3.42, 33" tires. I pull a pretty heavy camp trailer so about to pull the trigger on a 4.10 gear swap. Trying to find a little more info on the before/after results before pulling the $2200 trigger. The calculator asks for a transfer case model or gear ratio. Anyone know how to get this info? Not finding anything in the owners manual. I have the electronic controlled 2H/auto/4H/4L case RPO code NQH. Also can anyone tell me what an 'Underdrive' is? I don't think that applies to these trucks, but I could very well be wrong. http://www.grimmjeeper.com/gears.html Any info is truly appreciated

Posting a quick update here in case someone down the road has the same issue and stumbles across this thread. The trans thermostat delete did the trick. I'm averaging around 150 empty and 170 pulling (in summer). Pulling up a nasty canyon where I used to hit 240, I briefly hit 209 but stayed around 200 most the way up. Upgrading the radiator would have been a waste of money. Thanks to everyone who posted on this.

Maybe a dumb question but what's NHT? The 6.2 rad?

This got several replies that I missed. I guess being OP I assumed I'd get a notification. Still learning this website. Thank you all for the info. I'll get the tranny thermostat fixed and see how it does pulling for the summer. If I can avoid spending $900 on a new rad I'll happily do so!

Thanks for the info. I'll look into the lower trans thermostat. Way cheaper and easier then that new Rad. Good to know on coolant temps. Never had a vehicle that did that.

Hello fellow GM owners I have a 17 Silverado 1500 with a 5.3 and 3.42 gears. I tow a camp trailer that's 5100 lbs dry (probably around 6100 with water & camp gear). I'm within the weight limit of the truck, but I usually camp at 8000-9500 ft, so I pull it up some nasty steep long roads. I've been pretty disappointed with the cooling system on the truck. Granted I'm pushing it pretty hard...but my old man's 1997 Sierra 1500 does a better job keeping cool then mine. When going up a steep road it's not uncommon for my tranny to hit 240+ (even hit 260 once) and engine hits 235. It will rebound pretty quick once we plateau. My truck isn't max tow but it does have the radiator with built in oil and tranny cooler. I plan on keeping this long term so wanting to keep things closer to normal operating temps. Have any of you done a cooling system upgrade? I was thinking of a Mitsumoto Rad (link below). But not finding much info on them online. Plus their BBB rating isn't that great...they say they don't handle vibrations well and I'm driving on a lot of washboard dirt roads. Performance Aluminum Radiator, fits Chevrolet Silverado 1500 V8 2014–2018 (mishimoto.com) And advice appreciated. I went back to October and couldn't find this topic mentioned.

I did 5100 front and rear on my 1500. Much better over the stock Rancho's. As others have said, firms up the ride but doesn't make it harsh. If you're in a pinch then front only would be ok. But I'd do all of them if you can. Rear are the easy ones to install anyway.

Are you running the 5100's front & rear?

Thinking of swapping my all my Rancho's for Bilstein 5100's on my 2017 Silverado 1500. I've read that the Bilstein's are more off-road based and aren't the best option for pulling. Has anyone had any experience pulling with the Bilstein's vs stock? Wondering if I go 5100's up front to level it out and something stiffer on the back. Also I'm new here but love the website. These forum's helped sway me to Chevy when buying my truck. It's a HUGE upgrade from the falling apart Jeep I was driving.